TDK CD-RW is high-performance 700MB rewritable media designed for recording in computer drives. The high performance discs can be played in virtually any CD or DVD/CD player, in computer drives, and in game consoles. Because a single TDK CD-RW can be re-recorded with new data hundreds of times, its the ideal media for any application where you might want to replace a discs old data with updated content. Repeatedly use the same disc for regularly scheduled hard drive backups, to make fresh music and MP3 mixes for the road, and more. The TDK Certified Plus program ensures that TDK CD-RW media is formulated, manufactured and tested to the worlds highest standards. TDK CD-RW media delivers certified performance and reliability. Dont risk it, TDK it. Recording Humidity - 5~95 Degrees Relative Humidity Playback Temperature - -5~55 Degrees Centigrade